Question

— Do you think the only way to truly know a person is to argue with him?

— I can't agree more. When the argument is _______ it reveals their character.

A.in full swing B.in the air C.under the nose D.under the counter

Answer

A

【解析】

考查介词短语辨析。句意：——你认为唯一可以真正了解一个人的方法是和他争论吗？——我非常同意。当争论全面展开时，它会揭露他们的性格。A. in full swing全面展开；B. in the air悬而未决；C. under the nose私下地；D. under the counter违法，走后门。根据it reveals their character.可知，此处用“全面展开”符合语境，故选A项。